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Device and method for detecting hollow fibers of glass fiber electronic cloth

A glass fiber and fiber detection technology, which is applied in the inspection of textile materials, textiles and papermaking, etc., can solve problems such as abnormal copper penetration, copper foil conduction, and inconsistent methods, so as to improve electrical performance and reliability, and reduce failure probability, the effect of increasing plausibility and effectiveness

Active Publication Date: 2021-09-28
TAISHAN FIBERGLASS ZOUCHENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When laser drilling, if it hits here, it will cause abnormal copper infiltration and CAF will fail
The hollow fiber will cause the copper foil conduction to cause a short circuit during the drilling process of the substrate
At present, there is no fixed hollow fiber detection and calculation method in the industry. In practice, due to the inconsistent method, the cognition of the detection data is inconsistent.

Method used

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  • Device and method for detecting hollow fibers of glass fiber electronic cloth
  • Device and method for detecting hollow fibers of glass fiber electronic cloth
  • Device and method for detecting hollow fibers of glass fiber electronic cloth

Examples

Experimental program
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Effect test

Embodiment 1

[0057] As preferred, such as Figure 1-3 As shown, a kind of glass fiber electronic fabric hollow fiber detection method of the present invention comprises the following steps:

[0058] Step 1: Sampling, uniform sampling standards, take a certain size of warp*weft samples on the entire glass fiber electronic fabric;

[0059] Step 2: soaking, soaking the sample taken in the above step 1 into an organic solvent;

[0060] Step 3: Detection, irradiating the sample with an illuminating lamp, using the difference in refractive index between the gas and the glass fiber, when the incident light hits the outer wall of the hollow fiber glass and enters the interface between the glass and the gas through the glass, due to the refraction of the gas and the glass fiber The rate is different, when the light shines here, the human eye observes a bright line, and every time a bright line is seen, it is a hollow fiber, and the number of observed hollow fibers is recorded;

[0061] Step 4: Us...

Embodiment 2

[0085] Such as image 3 As shown, the glass fiber electronic cloth hollow fiber detection device of the present invention includes a glass fiber electronic cloth and an organic solvent storage device, the glass fiber electronic cloth is soaked in an organic solvent storage device, and an organic solvent storage device is provided in the organic solvent storage device. Solvent, the outside of the organic solvent storage device is equipped with an irradiation lamp, and the irradiation lamp is irradiated on the glass fiber electronic cloth, and the bright lines appearing on the glass fiber electronic cloth are hollow fibers.

[0086] The working principle of this embodiment is: the glass fiber is immersed in an organic solvent, and the difference in refractive index between the gas and the glass fiber is utilized. When the incident light hits the outer wall of the hollow fiber glass and penetrates the glass into the interface between the glass and the gas, due to the difference i...

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Abstract

The invention discloses a device and a method for detecting hollow fibers of glass fiber electronic cloth, and belongs to the technical field of glass fiber production. An irradiation lamp irradiates on a sample, and by utilizing the difference of refractive indexes of gas and glass fibers, when incident light irradiates on the outer wall of hollow fiber glass and penetrates through the glass to enter an interface of the glass and the gas, due to the fact that the refractive indexes of the gas and the glass fibers are different, when light irradiates the position, one bright line is observed by human eyes, one hollow fiber is observed when one bright line is seen, and the number of the observed hollow fibers is recorded; and detection methods and calculation methods of the hollow fibers are unified, and the number of the hollow fibers is uniformly recognized. The reasonability and effectiveness of hollow fiber detection are improved, the probability of CAF failure of a PCB is reduced, and the electrical performance and reliability of the PCB are improved. The problems in the prior art are solved.

Description

technical field [0001] The invention relates to a glass fiber electronic fabric hollow fiber detection device and method, belonging to the technical field of glass fiber production. Background technique [0002] At present, new fields of application of glass fiber electronic cloth are becoming more and more extensive, especially related to chip packaging, 5G and other products. The requirements for hollow fibers in glass fibers are more stringent. In the PCB industry in recent years, due to the design of light, thin, short, small and high-density products, the lines will be quite close. On mobile phones and laptops, the PITCH between lines and lines, holes and holes is smaller. In addition, some products, such as the control system of automobile brakes and brakes, cannot be mistaken in safety and are used in harsher environments. Therefore, the insulation resistance of materials is very important. These factors have promoted the development of anti-CAF glass fiber material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06H3/00D06H3/02
CPCD06H3/00D06H3/02
Inventor 刘东锋李洲李冲肖华青
Owner TAISHAN FIBERGLASS ZOUCHENG